Lenovo ThinkSystem SR860 Product Manual page 46

Operating environment
The ThinkSystem SR860 server complies with ASHRAE Class A2 specifications, and depending on the
hardware configuration, also complies with ASHRAE Class A3 and Class A4 specifications. System
performance may be impacted when operating temperature is outside ASHRAE A2 specification.
To comply with ASHRAE class A3 and class A4 specifications, the server models must meet the following
hardware configuration requirements:
Two power supplies installed
GPUs not installed
NVMe drives not installed
PCIe flash storage adapters not installed
In addition, CPU core speed may be reduced depending on the processor selected.
The SR860 is supported in the following environment:
Air temperature:
Operating:
ASHARE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient temperature
decreases by 1°C for every 300 m (984 ft) increase in altitude above 900 m (2,953 ft).
ASHARE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient temperature
decreases by 1°C for every 175 m (574 ft) increase in altitude above 900 m (2,953 ft).
ASHARE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient temperature
decreases by 1°C for every 125 m (410 ft) increase in altitude above 900 m (2,953 ft).
Server off: 5°C to 45°C (41°F to 113°F)
Shipment/storage: -40°C to 60°C (-40°F to 140°F)
Maximum altitude: 3,050 m (10,000 ft)
Relative Humidity (non-condensing):
Operating
ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
ASHRAE Class A3: 8% to 85%; maximum dew point: 24°C (75°F)
ASHRAE Class A4: 8% to 90%; maximum dew point: 24°C (75°F)
Shipment/storage: 8% to 90%
The server generates the following heat and noise:
Heat/thermal output:
Minimum configuration: 579 BTU, 169 W (in BTU per hour and watts)
Maximum configuration: 5320 BTU, 1559 W (in BTU per hour and watts)
Noise level (LWAm)
Sound power levels, idle: 5.8 bels (minimum), 6.4 bels (typical), 6.6 bels (maximum)
Sound power levels, operating: 6.8 bels (minimum), 7.0 bels (typical), 7.2 bels (maximum)
The server has the following vibration and shock limits:
Vibration:
Operating: 0.21 G rms at 5 Hz to 500 Hz for 15 minutes across 3 axes
Non-operating: 1.04 G rms at 2 Hz to 200 Hz for 15 minutes across 6 surfaces
Shock:
Operating: 15 G for 3 milliseconds in each direction (positive and negative X, Y, and Z axes)
Non-operating:
12-22 kg: 50 G for 152 in./sec velocity change across 6 surfaces
23-31 kg: 35 G for 152 in./sec velocity change across 6 surfaces
Over 31 kg: Square wave 35G, deltaV=136 in./sec
Lenovo ThinkSystem SR860 Server 46